5 October 2026
Anthropic and OpenAI cut AI model prices, launch new versions
First reported
Last Week in AI ran this on .
- Anthropic released Claude Opus 5.5 with 40% lower costs and improved cybersecurity safeguards, plus a faster Sonnet 5.5 variant.
- OpenAI released GPT-6 Sol and Luna models at half the cost of previous versions, followed by GPT-6.1 Sol at one-fifth prior token prices.
